Electronic device



FIG. 1 is a perspective view of an ornamental design for an electronic device;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top side view thereof; and,

FIG. 7 is a bottom side view thereof.

The broken lines shown in the drawings are for the purpose of illustrating unclaimed portions of the electronic device and form no part of the claimed design. 

The ornamental design for an electronic device, as shown and described. 